Galaxies
Galaxies are vast collections of stars, gas, dust, and dark matter bound together by gravity. There are hundreds of billions of galaxies in the universe.
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Solar system
Our solar system hosts a plethora of fascinating planets and other objects.
Milky Way
Our home galaxy hosts hundreds of billions of stars orbited by countless worlds.
Alien life
Only one planet we know of hosts life. But the hunt for extraterrestrial life is on.
Exotic objects
The universe is filled with extreme objects, from black holes to pulsars and more.